Finding the Fourth Proportional to 1,181.27, 1,630.24 and 683.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181.27 : 1,630.24 = 683.91 : x
2. Step 2: Convert to fraction form
   1,181.27/1,630.24 = 683.91/x
3. Step 3: Cross multiply
   1,181.27x = 1,630.24 × 683.91
4. Step 4: Simplify right side
   1,181.27x = 1,114,939.58
5. Step 5: Solve for x
   x = 1,114,939.58/1,181.27
6. Step 6: Final answer
   x = 943.85